WinOnWin GuiName LeftOffset TopOffset
This command instructs the window to disregard the Left and Top
offsets given in the WinBig command and instead open relative to
a "GuiName's" window.
GuiName : The name of the Gui File whose window will be used
LeftOffset : Left Offset from the GuiName window position
TopOffset : Top Offset from GuiName window position